Table 9 - LOS Designation in the Highway Capacity Manual (1994)

Table 9 - LOS Designation in the Highway Capacity Manual (1994)

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Level of service Stopped time per vehicle (STV; seconds/vehicle)
A STV ≤ 5
B 5 < STV ≤ 15
C 15 < STV ≤ 25
D 25 < STV ≤ 40
E 40 < STV ≤ 60
F STV ≥ 60